Implement robust error handling in client-side JavaScript code to gracefully manage failures in static site operations. Use this skill when working with error scenarios in API calls, DOM manipulation, data parsing, and user interactions.
Use when writing JavaScript or TypeScript code with asynchronous operations
Kyoto Moss design system for Heartbeat uptime monitoring. Invoke when building, modifying, or reviewing Heartbeat UI components. Ensures visual consistency and prevents design violations.
React 19.x development patterns and APIs. Use when building React applications with React 19+ features including Actions (useTransition with async), useActionState, useFormStatus, useOptimistic, use() API, Form Actions, ref as prop (no forwardRef), Context as provider, document metadata/stylesheets/scripts, Server Components, Server Actions, prerender(), the Activity component, useEffectEvent, cacheSignal(), and Partial Pre-rendering. Triggers on React 19 questions, form handling, server components, or when using new React 19 APIs.
Build reactive and template-driven forms, implement custom validators, create async validators, add cross-field validation, and generate dynamic forms for Angular applications.
Angular HttpClient for API communication, interceptors, and error handling
Provides Framer Motion animation patterns and best practices specific to the Bellog blog project. Triggers when implementing animated components or interactions.
Render interactive React UIs in a browser window using file operations. Use when users ask to: show forms, render charts/graphs, create dashboards, display data tables, build visual interfaces, or show any UI component. Trigger phrases: "show me", "render", "display", "create a form/chart/table/dashboard".
Angular Material UI components, theming, and accessible interface design
Guide for working with the configuration-driven filter system. Use when adding/modifying filters, updating URL parsing, debugging filter-related issues, or working with config/filters.ts.
WHEN: User is writing HTML/templates with Tailwind CSS classes, styling components, configuring Tailwind themes, asking about Tailwind utilities or patterns, or working with any project that uses Tailwind CSS WHEN NOT: Non-Tailwind CSS questions, general HTML/CSS without Tailwind context, questions about other CSS frameworks (Bootstrap, etc.)
Style React components with Tailwind CSS v4 utility classes. Use when styling UI components, applying responsive designs, theming, or working with CSS-in-JS patterns. Covers v4 CSS-first configuration, @theme directive, new variants, and breaking changes from v3.
Enterprise-grade component design and architecture with React 19, Vue 3.5, Atomic Design patterns, accessibility standards (WCAG 2.1 AA), design systems, and production-ready component libraries. Use when building reusable component systems, designing component libraries, implementing Atomic Design, ensuring accessibility compliance, or creating scalable UI architectures.
Guide for internationalization with next-intl. Use when adding links, translations, or localized URLs. Always use Link from @i18n/routing.
Validates shadcn/ui component customization depth, ensuring components aren't used with default props and checking for consistent design system implementation across Tanstack Start applications
Navigation setup and patterns for React Navigation 7
Master state management - Redux Toolkit, Zustand, TanStack Query, and data persistence
Automatically validates frontend design patterns to prevent generic aesthetics (Inter fonts, purple gradients, minimal animations) and enforce distinctive, branded design during Tanstack Start (React) development with shadcn/ui
Generate FOSMVVM ViewModels - the bridge between server-side data and client-side Views. Use when creating new screens, pages, components, or any UI that displays data.
Angular 21 + PrimeNG 企業應用開發最佳實踐。適用於 MES、ERP 等企業級應用開發。涵蓋元件設計、狀態管理、效能優化、PrimeNG 元件使用規範。
Complete knowledge base for building production-ready cross-platform TV applications with React Native - supporting Android TV, Apple TV, Fire TV (Fire OS & Vega OS), and Web TV platforms with a single codebase. Use when implementing TV apps, monorepo architecture, spatial navigation, video playback, platform-specific optimizations, or migrating from Vega to multi-platform.
React Native core patterns, navigation, state management, and performance optimization.
TanStack React Query v5 patterns for server state management
